#!/bin/sh

# Slackware build script for openvswitch

# Copyright 2008-2010 Christopher Walker
# All rights reserved.
#
# Redistribution and use of this script, with or without modification, is
# permitted provided that the following conditions are met:
#
# 1. Redistributions of this script must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ''AS IS'' AND ANY EXPRESS OR IMPLIED
# WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
# MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
# EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

PRGNAM=openvswitch
VERSION=1.0.1
BUILD=${BUILD:-1}
TAG=${TAG:-_SBo}
MODULEPATH=${MODULEPATH:-/lib/modules/`uname -r`}

if [ -z "$ARCH" ]; then
  case "$( uname -m )" in
    i?86) ARCH=i486 ;;
    arm*) ARCH=arm ;;
       *) ARCH=$( uname -m ) ;;
  esac
fi

CWD=$(pwd)
TMP=${TMP:-/tmp/SBo}
PKG=$TMP/package-$PRGNAM
OUTPUT=${OUTPUT:-/tmp}

if [ "$ARCH" = "i486" ]; then
  SLKCFLAGS="-O2 -march=i486 -mtune=i686"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "i686" ]; then
  SLKCFLAGS="-O2 -march=i686 -mtune=i686"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "x86_64" ]; then
  SLKCFLAGS="-O2 -fPIC"
  LIBDIRSUFFIX="64"
else
  SLKCFLAGS="-O2"
  LIBDIRSUFFIX=""
fi

set -e

if [ ! -d $MODULEPATH ]; then
  echo "Missing module path $MODULEPATH!  Exiting script..."
  exit
fi

if [ ! -h $MODULEPATH/build ]; then
  echo "Missing source patch $MODULEPATH/build!  Exiting script..."
  exit
fi

KERNELPATH=$(readlink /lib/modules/`uname -r`/build)

rm -rf $PKG
mkdir -p $TMP $PKG $OUTPUT
cd $TMP
rm -rf $PRGNAM-$VERSION
tar xvf $CWD/$PRGNAM-$VERSION.tar.gz
cd $PRGNAM-$VERSION
chown -R root:root .
chmod -R u+w,go+r-w,a-s .

CFLAGS="$SLKCFLAGS" \
CXXFLAGS="$SLKCFLAGS" \
./configure \
  --prefix=/usr \
  --sysconfdir=/etc \
  --localstatedir=/var \
  --mandir=/usr/man \
  --docdir=/usr/doc/$PRGNAM-$VERSION \
  --with-l26=$KERNELPATH \
  --enable-ndebug \
  --enable-ssl

make
make DESTDIR=$TMP/package-$PRGNAM install

find $PKG | xargs file | grep -e "executable" -e "shared object" | grep ELF \
  | cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null || true

find $PKG/usr/man -type f -exec gzip -9 {} \;
for i in $( find $PKG/usr/man -type l ) ; do ln -s $( readlink $i ).gz $i.gz ; rm $i ; done

mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION/{schema,xen}
install -m 644 COPYING ChangeLog CodingStyle INSTALL.KVM INSTALL.Linux \
  INSTALL.OpenFlow INSTALL.SSL INSTALL.XenServer INSTALL.bridge \
  INSTALL.userspace NOTICE README README-gcov REPORTING-BUGS \
  SubmittingPatches \
  $PKG/usr/doc/$PRGNAM-$VERSION
install -m 644 $CWD/xen/vif-openvswitch $CWD/xen/network-openvswitch \
  $CWD/xen/README \
  $PKG/usr/doc/$PRGNAM-$VERSION/xen
install -m 644 vswitchd/vswitch.ovsschema \
  $PKG/usr/doc/$PRGNAM-$VERSION/schema
cat $CWD/$PRGNAM.SlackBuild > $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild

mkdir -p $PKG$MODULEPATH/kernel/extra/openvswitch
install -m 644 datapath/linux-2.6/openvswitch_mod.ko \
  $PKG$MODULEPATH/kernel/extra/openvswitch
install -m 644 datapath/linux-2.6/brcompat_mod.ko \
  $PKG$MODULEPATH/kernel/extra/openvswitch

mkdir -p $PKG/etc/openvswitch

mkdir -p $PKG/etc/rc.d
sed -e "s/@DOCDIR@/\/usr\/doc\/$PRGNAM-$VERSION\/schema/" $CWD/rc.openvswitch > $PKG/etc/rc.d/rc.openvswitch.new

mkdir -p $PKG/install
cat $CWD/slack-desc > $PKG/install/slack-desc
cat $CWD/doinst.sh > $PKG/install/doinst.sh

mkdir -p $PKG/var/run/openvswitch

cd $PKG
/sbin/makepkg -l y -c n $OUTPUT/$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.${PKGTYPE:-tgz}
